Document No.:KE-4010-11 Page: 45/58
4. ChangeofSpringCartridgeUnits
4.1KITZTypeFASspringreturnactuatorsarefactory-assembledwithastandard4Kspringcartridgeunit(for
0.4MPaoperatingpressure). Thiscanbeoptionallychangedtoeither3Kunit(for0.3MPa)or5Kunit(for
0.5MPa)withtheprocedures providedbelow(Fig.4).
Fig.4
(1)Disassembletheairtubingandequalizethehousingpressurewiththeatmosphericlevel.
(2)Loosen4hexagonboltsanddisassemblethestandard4Kspringcartridgeunitfromthehousing.
(3)Mountyourpreferred,optional3Kor5Kunitsecurelytothehousingwithhexagonbolts.
(4)Adjustthevalveopeningangle,followingtheinstructionsprovidedinSection14oftheoperationmanual.
(5)Energizetheactuatorfortrialoperationtoensuretrouble-freefunction.
4.2ProductcodesofalloptionalspringcartridgeunitsareprovidedinTable5. Eachunitconsistsofaspring,
aspringretainer,aretainerguideandaspringcover. Other smallpartssuchasastopperbolt,asealwasher,
ahexagonnut,hexagonboltsandabreathingholeplugusedfor4Kunitmaybeusedforassemblyof3Kor5K
springcartridgesastheyare.
Table5.ProductCodesofOptionalSpringCartridgeUnits
Actuator
Description Productcode
3Kunit
AE04-4202-10
FAS-1
5Kunit
AE04-4203-10
3Kunit
AE04-4302-10
FAS-2
5Kunit
AE04-4303-10
3Kunit
AE04-4402-10
FAS-3
5Kunit
AE04-4403-10
3Kunit
AE04-4502-10
FAS-4
5Kunit
AE04-4503-10
3Kunit
AE04-4602-10
FAS-5
5Kunit
AE04-4603-10
3Kunit
AE04-4702-10
FAS-6
5Kunit
AE04-4703-10
Standard4Kunit
Optional3Kunit
Optional5Kunit